guanidinoacetic acid
Skip itA small market ($7K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Incredible$32.59avg listing price — sweet spot $15–$100
Price range
Great$12.97–$68.48cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Review moat
Good874.19avg incumbent reviews — the moat a new listing must climb
Growth
Okay+7.3%90-day search growth — must beat 0% to launch
Brand share
Bad91%top-5 brand share — brand-locked demand
Competition
Bad77%top-5 click share — a locked-up shelf
Conversion
Bad0.5%search→purchase rate — share of searches ending in a sale
Market size
Bad$7K$7K/yr · 43K searches
According to Flapen's Amazon United States niche tracking, guanidinoacetic acid is a $7K/yr Amazon United States market (43K searches/yr). The top 5 brands hold 91% of demand. Verdict: Skip it — 40/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
guanidinoacetic acid market data
- Units sold / yr
- 500–750
- avg 0–100/product
- Revenue / yr
- $16K–$24K
- units × avg price
- Conversion rate
- 0.5%
- Avg BSR
- #949
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 94%
- Out of stock
- 1.0%
- Avg brand age
- 54 months
- Avg seller age
- 141 days
Competition & brand share
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.Brands
11 rising
Sellers
23
Top-5 brand share
91%
Top 20: 100%
Top-5 click share
77%
Top 20: 100%
Open market
7%
- Unmatched49%
- CreGAAtine24%
- Purity Products7%
- Fit & Lean6%
- Toniiq5%
- BodyHealth2%
- Open — no brand owns it (5 brands, 7%)
Demand
Weekly Amazon search volume, last 38 weeks — +7.3% search growth over the last 90 days.Top guanidinoacetic acid search terms
- guanidinoacetic acid17K/yr
- guanidinoacetic acid supplement11K/yr
- guanidinoacetic acid gaa5K/yr
- guanidinoacetic acid gaa powder4K/yr
- gaa guanidinoacetic acid6K/yr
Top guanidinoacetic acid products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Unmatched CreGAAtine Optimized Creatine | Creatine Monohydrate + GAA (Guanidinoacetic Acid) | Muscle Build Strength Recovery | 60 Servings (Unflavored)
Unmatched$34.374.5★70 rev
Unmatched CreGAAtine Optimized Creatine | Creatine Monohydrate + GAA (Guanidinoacetic Acid) | Muscle Build Strength Recovery | 180 Capsules 60 Servings (Unflavored)
Unmatched$34.224.4★26 rev
CreGAAtine Micronized Creatine Monohydrate + GAA | Increase Strength No Water Retention | Boosts Memory & Focus | Single-Serve Packets | 60 Sachets 30 Servings | (Sachets Unflavored)
CreGAAtine$29.084.4★154 rev
Purity Products Muscle Accelerator 650 mg Patented & Clinically Tested Muscle Accelerator Blend of Ayurvedic Herbal Extracts Promotes Strength Endurance + Muscle Growth - 60 Veg Caps
Purity Products$43.794.2★1,603 rev
CreGAAtine Micronized Creatine Monohydrate + GAA | Increase Strength No Water Retention | Boosts Memory & Focus | Single-Serve Packets | 60 Sachets 30 Servings | (Sachets Orange)
CreGAAtine$28.834.2★76 rev
Newest
by launch date
HEALOADING Creatine Monohydrate Gummies with GAA: Pre Workout Muscle Support Supplement for Men & Women - Fast-Absorbing ATP Production Post-Workout Recovery - 120 Count
HEALOADING$33.643 rev
Fit & Lean Creatine for Women My Lean Creatine Powder Complex with GAA Muscle Performance Cognitive Function and Less Bloating Reduced Water Retention (6.46 Ounce (Pack of 1) Rainbow Sherbert)
Fit & Lean$17.1023 rev
Fit & Lean Creatine for Women My Lean Creatine Powder Complex with GAA Muscle Performance Cognitive Function and Less Bloating Reduced Water Retention Orange Sherbert 30 Servings
Fit & Lean$19.636 rev
Unmatched CreGAAtine Optimized Creatine | Creatine Monohydrate + GAA (Guanidinoacetic Acid) | Muscle Build Strength Recovery | 180 Capsules 60 Servings (Unflavored)
Unmatched$34.2226 rev
CreGAAtine Ultimate | 50% Higher Dosage in Bulk Pack | Micronized Creatine Monohydrate + GAA | Advanced Strength & Focus | No Water Retention | Boosts Muscle Growth & Energy | 500g 166 Servings
CreGAAtine$68.4842 rev
Trending
90-day click momentumHEALOADING Creatine Monohydrate Gummies with GAA: Pre Workout Muscle Support Supplement for Men & Women - Fast-Absorbing ATP Production Post-Workout Recovery - 120 Count
HEALOADING$33.645.0★
Enhanced Labs - Arachidonic Acid Supplement - Muscle and Strength Supplement for Increased Muscle Mass & Improved Recovery for Men & Women - One Capsule Contains 350mg Arachidonic Acid (120 Capsules)
Enhanced$43.224.0★
Toniiq Ultra High Purity Alpha GPC Capsules - 600mg Concentrated Formula - 90%+ Highly Purified and Bioavailable Nootropic - 120 Capsules Alpha GPC Supplement
Toniiq$29.294.5★
Acid Reflux Complete 8oz - Natural Organic Liquid Heartburn GERD & Amish Reflux Relief Remedy & Medicine
Complete Natural Products$12.974.0★
Fit & Lean Creatine for Women My Lean Creatine Powder Complex with GAA Muscle Performance Cognitive Function and Less Bloating Reduced Water Retention Orange Sherbert 30 Servings
Fit & Lean$19.635.0★
What buyers say about guanidinoacetic acid
What buyers praise and complain about, mined from review topics.What buyers love
“WORKING WELL FOR MY NEUROPATHY PAIN”
“Good quality”
“good supplement”
“You will get stronger muscles, tendons and bones with this cocktail”
“Decent for the price”
“This is hands down better than any other creatine Ive used”
“Extremely effective”
“I do believe that this works as claimed”
“Exceptional creatine”
“This product is really powerful for me”
What buyers complain about
“It is expensive”
“a dose with no real scientific backing”
“Capsules too large for me”
“Changed formulation”
“Dont work”
“Acid reflux after swallowing them”
“This product is overrated”
“Complete false advertisement”
“It's definitely not tasteless”
“Doesnt work - I do not get sore”
Top return reasons
Common questions
- Is guanidinoacetic acid profitable to sell on Amazon United States?
- The niche generates $7K/yr across 16 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +7.3%. Flapen's verdict: Skip it (40/100).
- How competitive is the guanidinoacetic acid niche?
- 11 brands and 23 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 91% of demand.
- What do buyers complain about in guanidinoacetic acid?
- Top complaints mined from reviews: Value For Money, Dosage, Size-Overall. The return rate is 0.0%.
- What does it cost to enter the guanidinoacetic acid niche?
- Listings span $12.97–$68.48; the average listing price is $32.59 (sweet spot $15–$100). The average incumbent carries 874 reviews — the moat a new listing must climb.